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TM-RE40 has been discontinued
Discontinued March 17, 2018
This product was discontinued because the part number was changed by the manufacturer. No modifications were made to the replacement product.
MANUALS (2)
Direct Replacement:
Product Highlights
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T-D2U, T-H3, T-KJr2U, T-H3J, T-H3S, T-K4U
Description
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The Takagi brand has been discontinued by the manufacturer as of December 31, 2025. Suggested replacement units will be available on our website and replacement parts will continue to be available as supplies last. If you'd like any further assistance, please contact our customer service team.
Specs
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| Used With: | T-D2U T-H3 T-KJr2U T-H3J T-H3S T-K4U |
|---|---|
| Product Type: | Control |
Contact
+
Happy Independence Day!
Our Customer Support will be closed today in honor of Independence Day. We will be back on Sunday to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
Monday – Thursday
8am–7:45pm
Friday
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Saturday – Sunday
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Product Reviews
4.5 out of 4 reviews
100% would recommend this product
5 star
75%
4 star
0%
3 star
25%
2 star
0%
1 star
0%
Showing 1-4 of 4 reviews
AWSOME PRODUCT EASY TO INSTALL
THIS PRODUCT REALLY WORKED GOOD FOR ME I NEEDED TO BE ABLE TO CONTROL TEMPERATURE FROM SECOND FLOOR WIRES UP JUST LIKE A THERMASTAT 2 CONDUCTOR WIRE VERY EASY INSTALL. AND CUSTOMER SERVICE WITH SUPPLY HOUSE WAS WONDERFULL VERY HELPFULL STAFF.
THIZZO
ROCKFORD IL,
9 years ago
Verified Buyer
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Remote for takagi TH-3
This remote is great. Takagi changed the temperature limits on the TH-3. Without this remote you are limited to 160 degrees.
Supply house had best price. BY 25% and shipping
Suprisingly fast. Great company.
Just Ben
Lewistown Pa.
10 years ago
Verified Buyer
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Basically, a duplicate display and controller--but BYO cable
The display is essentially a replica of the one on the unit. It is a wired display, useful if the display of the actual unit is obscured or if you want to run the control/cord into another room. It does NOT come with the cable,, which seems silly. The display defaults to Celsius. Had to look up online how to change it. Hold the info button for at least 3 seconds and it changes.
renovater by chance
San Francisco
10 years ago
Verified Buyer
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Problem solver.
Simple, easy install, complete control of your unit.
FIRESTAR INC.
Somerset, NJ
10 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: I am looking to buy the Takagi T-H3 indoor tankless to be used for radiator heating. The outdoor version of the T-H3 comes with the TM-RE40 temperature remote controller, the indoor version does not come with the remote. Do I need to buy the remote in order to raise the temperature to 175 degrees F?
Asked by WaterDrinker74 13 years ago
Add your answer
Verified Reply- PexSupply StaffThe T-H3 indoor units come with an integrated temperature controller, the remote unit is optional but not necessary. For more information please refer to page 40 of the user guide found here on our site : http://s3.pexsupply.com/product_files/T-H3-DV-N-Install.pdf
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- Doug
Yes, you will need this to set the unit above 160 with the 2015+ models.
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